(2S)-4,4-dimethylpyrrolidine-2-carboxylic acid(CAS: 891183-50-9)

(2S)-4,4-Dimethylpyrrolidine-2-carboxylic acid is a colorless solid with a molecular weight of 140.22 g/mol. It has a pKa of approximately 2.4 and is moderately soluble in water. This compound is known for its reactivity, particularly in forming esters and amides. It crystallizes in the form of prisms and is stable under normal conditions.

(2S)-4,4-Dimethylpyrrolidine-2-carboxylic acid can be synthesized through the reaction of (2S)-4,4-dimethylpyrrolidine with carboxylic anhydride or a carboxylating agent. Common methods involve the use of acetic anhydride in the presence of a Lewis acid catalyst such as aluminum chloride. The yield is typically around 85%, and the reaction is selective for the desired product.

(2S)-4,4-Dimethylpyrrolidine-2-carboxylic acid is used in pharmaceuticals for the synthesis of certain drug intermediates. It also finds applications in the production of polymers, particularly in the development of biodegradable materials. Additionally, it is utilized in the development of sensors and in semiconductor manufacturing processes.

When handling (2S)-4,4-dimethylpyrrolidine-2-carboxylic acid, it is essential to use appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Storage should be in a cool, dry place away from direct sunlight. Spills should be cleaned up immediately using appropriate absorbent materials. Always consult the Safety Data Sheet (SDS) for detailed handling and disposal procedures.